Acetylene-gas generator.



UNITED STATES PATENT OFFICE.

EDVARD BJGRNRUD, OF CHRISTIAN'IA, NORIVAY.

ACETYLENE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 691,890, dated January28, 1902. Application filed October 10 1899. Serial No- 733,217. (Nomodel.)

To all whom it may concern.-

Be it known that I, EDVARD BJoRNRUD, a subject of the King of Sweden andNorway, and a resident of Ohristiania, Norway, have invented certain newand useful Improvements in Acetylene-Gas Generators, of which thefollowing is a specification.

This invention relates to acetylene-gas generators of that class inwhich charges of carbid are automatically fed to the generator, thefeeding being controlled by the gas generated.

The invention is illustrated in the accompanying drawings, in which--Figure 1 is a central vertical section through the generator. Fig. 2 isa plan view, and Fig. 3 a detail view.-

In the drawings, A represents a gasometer having a bell A, and B thegenerator for generating and feeding the acetylene gas thereto andadapted to contain a body of water in its lower part, as shown. At theupper part of the generator are a number of substantially cylindricalholders or chambers a, correspondin g in number to the size of theapparatus, which chambers serve for the introduction of the carbid infixed quantities. These chambers are each closed gas-tight at the upperend by a cover I), held together in position by an eccentric lever a.Each chamber is also provided with a movable bottom or flap d, adaptedto shut gas-tight against a ring e, secured to the lower edge of thechamber. These flaps d are carried by. arms f, mounted to rock onrock-shafts g, supported in bearings h on the chambers 01.. Weights tare carried by the arms, which tend to hold the bottoms or flaps closedagainst the weight of the carbid thereon. In order to open the bottomsor flaps, I provide an arm j, clamped to the vertical shaft by nuts j 7'which shaft is journaled in the pipe m, carried by the plates Z Z of thegenerator. The nutj has a closed lower end or side, so as to pre ventany escape of gas. In order to rotate saidshaft It, a ratchet device isprovided, as hereinafter described, and as the shaft rotates the arm jwill successively contact with the weights 2' and raise them, thusopening the flaps and allowing the carbid to drop out of the chambers.The arm j is shown more clearly and enlarged in Fig. 3, where 7'indicates the portion which encircles the shaft is and is clampedbetween the nuts,while 7' and j are double inclines over which theweights 2' travel. p p

In order to rotate the shaft 10, I preferably provide a tube or sleeve0, which encircles the shaft and has its lower end seated upon the nut0', while its upper end is spaced from the shaft by a collar 0 andclosed by a cap 0 The tube is clamped rigidly to the shaft by set-screwsz a. A chain 13, secured to the bell of the gasometer, passes upwardover a pulley p" and thence across to a frame 1), carrying two rollers1), between which extends an arm 11, pivotally carried by the tube 0. Apawl n, carried by said arm, engages the teeth of a ratchet-wheel a,rigidly secured to the tube 0, and as the bell descends will rotate saidtube and with it shaft 7.: and arm j, operating the bottoms or flaps inthe manner before described. In order to draw the arm 19' back as thebell rises, a chain 19 passing over a pulley Z is provided, having aweight s on the end thereof.

In order to prevent the opening of a cover of a carbid-chamber at thesame time that the flap or bottom is open, I provide an arm r, solocated upon the tube 0 as to rest above the handle or lover a andprevent raising thereof when the arm j has opened the flap.

A pipe q, having a cock q, serves to con vey water from thegasometertothe generator, and a drain-cock 25 serves for draining the generator. Apipe X conveys the gas from the generator to the gasometer, said pipeterminating in an inverted-cup-shaped casing y, forming a water seal,and a pipe X conveys the gas from the gasometer to the point ofconsumption. The bell of the gasometer may be guided in itsupward-ariddownward movement by telescoping tubes W and W,- secured,respectively, to the bail w of the gas ometer and the bell and suitablypacked, the tube W being closedat its lower end by a cap w, which mayhave a rod or extension passing up into the tube W as a further guide.

Having thus described my invention, what I claim is 1. In anacetylene-gas apparatus, the combination with the generator, ofcarbid-chambers arranged in the upper part thereof, weighted flapsclosing said oarbid-chambers,

trio levers for operating the covers, and a reraining-arm moving inunison with the flapoperating arm and serving to maintain the cover in aclosed position when the flap is opened, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

EDVARD BJoRNRUD.

Witnesses:

KATHINKA PAULSSEN, AXEL LAHN.

